There is potential for isolated severe thunderstorms to affect portions of southwest, central and northern Oklahoma late this afternoon through this evening. At 3 PM, a dryline was in place from far western North Texas up through Mangum to Fairview in Oklahoma. A slow moving warm front was stretched across northern Oklahoma.
The area of greatest interest was a plume of deeper Gulf moisture, east of the dryline centered around Altus to Lawton and Chickasha. This plume of moisture will lift to around Weatherford to El Reno during peak heating this afternoon. Thunderstorms may develop to the west and north of Oklahoma City with movement toward the northeast. Other isolated storms could form back toward southwest Oklahoma. Any storm that is able to become established will work with a great amount of instability and moderate to strong wind shear resulting in a distinct threat of large hail.
Meanwhile, fire weather concerns continue west of the dryline. In far western Oklahoma, southerly winds will increase to around 20 mph with higher gusts. Humidity will average 10 to 15 percent west of the dryline through early evening.